Dasher.



No. 789,288. PATENTED MAY 9, 1905.

L M. MURPHY.

DASHER.

APPLICATION FILED JAN. 25, 190%.

511117125505; IIJ'IIBIITDI' ans. 1W 7 2 7%. W1

' Wfi NITED STATES Patented May 9, 1905.

IDA M. MURPHY, OF NEW YORK, N. Y.

DASHER.

SPECIFICATION forming part of Letters Patent No. 789,288, dated May 9,1905,

Application l January 25, 1904. Serial No. 190.459.

To (LU/ whom it may concern:

Be it known that 1, IDA M. MURPHY, a citizen of the United States, and aresident of the borough of Manhattan, in the city and State of New York,have invented a new and useful Improvement in Dashers, of which thefollowing is a specification.

My invention relates to an improvement in dashers, and has particularlyfor its object to provide an improved form of dasher whereby verysuperior results are produced when the dasher is used for the purposefor which it is desired.

A further object is to provide a dasher with air passages or ductsarranged therein in a novel manner, so as to produce the good resultsreferred to.

A practical embodiment of my invention is represented in theaccompanying drawings, in which- Figure 1 represents the dasher in sideelevation. Fig. 2 represents the same in top plan. Fig. 3 is a verticaltransverse section, and Fig. 4 is a vertical transverse section of aslightly-modified form.

The dasher, comprising a plurality of wings radiating from its axis, isherein shown as being rectangular in cross and longitudinal sections or,in other words, comprising a rectangular block 1, having its axis abouthalfway between the sides of the block. The top and bottom of the dasherare denoted by 2 and 3, its sides by 4 and 5, and its faces by 6 and 7.Oppositely-arranged cutting edges 8 are formed by the junction of thesides and faces of the dasher, the said cutting edges extending from thetop to the bottom thereof. A shaft fitting or socket 9 is provided forthe attachment of the shaft. (Not shown herein.) I provide a pluralityof transverse air passages or ducts 10 adjacent to the cutting edges,which ducts open through the sides 4 and 5 of the dasher. In the formshown in Fig. 3 one only of these transverse or horizontal air passagesor ducts extends entirely through the body of the dasher. In Fig. 4 1

have shown all three of the horizontal air passages or d ucts asextending enti rel y through the body of the dasher. I provide avertical air passage or duct 11 upon each side of the shaftfitting,which air passages or ducts connect with the several horizontal airpassages or ducts 10 and connect the said transverse or horizontalair-passages with the external air.

It is evident that other forms might be provided than that shown herein.Hence I do not wish to limit myself to the particular arrangement hereinshown and described, but

What I claim is 1. A churn-dasher having a body and a shaft-fitting,said body having oppositely-arranged cutting edges, and a horizontalair-i passage adjacent to such edges and extending entirely through thebody of the dasher, and with vertical air-passages connecting with thehorizontal passage on each side of the shaftlitting, substantially asset forth.

2. A churn-dasher having a body and a shaft-fitting, said body havingoppositely-arranged cutting edges, a transverse air-passage openingthrough the body adjacent to one of the edges and a vertical air-passageat one side of the shaft-fitting, connected with the transverseair-passage, said vertical airpassage opening through the top of thebody of the dasher, substantially as set forth.

3. A churn-dasher having a body and a shaft-fitting, said body havingoppositely-arranged cutting edges and a plurality of airpassagesadjacent to such edges, one or more of the passages extending entirelythrough the body of the dasher, and with vertical airpassages connectingwith the horizontal passages on each side of the shaft-fitting,substantially as set forth.

In testimony that I claim the foregoing as my invention 1 have signed myname, in presence of two witnesses, this 20th day of J anuary, 1904.

IDA M. MURPHY.

Witnesses FR'EDK. HAYNES, .HENRY THIEME.

